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Added SDL_GetTextureDXGIResource() to get the DXGI resource associated with a render texture.

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Also switched the D3D11 and D3D12 renderers to use real NV12 textures for NV12 data.

The combination of these two changes allows us to implement 0-copy video decode and playback for D3D11 in testffmpeg without any access to the renderer internals.
This commit is contained in:
Sam Lantinga
2023-10-10 00:04:45 -07:00
parent a842446f62
commit 2bd478ae65
10 changed files with 336 additions and 265 deletions
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1
src/dynapi/SDL_dynapi.sym
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@@ -907,6 +907,7 @@ SDL3_0.0.0 {
SDL_SetAudioStreamFrequencyRatio;
SDL_SetAudioPostmixCallback;
SDL_GetAudioStreamQueued;
SDL_GetTextureDXGIResource;
# extra symbols go here (don't modify this line)
local: *;
};

1
src/dynapi/SDL_dynapi_overrides.h
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@@ -932,3 +932,4 @@
#define SDL_SetAudioStreamFrequencyRatio SDL_SetAudioStreamFrequencyRatio_REAL
#define SDL_SetAudioPostmixCallback SDL_SetAudioPostmixCallback_REAL
#define SDL_GetAudioStreamQueued SDL_GetAudioStreamQueued_REAL
#define SDL_GetTextureDXGIResource SDL_GetTextureDXGIResource_REAL

1
src/dynapi/SDL_dynapi_procs.h
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@@ -978,3 +978,4 @@ SDL_DYNAPI_PROC(float,SDL_GetAudioStreamFrequencyRatio,(SDL_AudioStream *a),(a),
SDL_DYNAPI_PROC(int,SDL_SetAudioStreamFrequencyRatio,(SDL_AudioStream *a, float b),(a,b),return)
SDL_DYNAPI_PROC(int,SDL_SetAudioPostmixCallback,(SDL_AudioDeviceID a, SDL_AudioPostmixCallback b, void *c),(a,b,c),return)
SDL_DYNAPI_PROC(int,SDL_GetAudioStreamQueued,(SDL_AudioStream *a),(a),return)
SDL_DYNAPI_PROC(IDXGIResource*,SDL_GetTextureDXGIResource,(SDL_Texture *a),(a),return)